The muscular organ which is responsible to pump blood through the blood vessels is known as

  • lungs
  • liver
  • heart
  • none of above

The dengue fever leads to the decrease in

  • sucrose
  • white blood cells
  • platelets
  • red blood cells

On the formation of red blood cells (RBCs), the nucleus is

  • multiplied
  • divided
  • absent
  • present

The presence of sugar into the sieve tubes leads to

  • decrease of solute concentration
  • increase of solute concentration
  • increase of solvent concentration
  • decrease of solvent concentration

Considering the structure of human heart, the deoxygenated blood is received by

  • left atrium
  • right atrium
  • upper atrium
  • lower atrium

The water in blood in which metabolites, salts, proteins and wastes are dissolved is called

  • plasma
  • glucose
  • sucrose
  • glycerol

The sac in which heart is enclosed is known as

  • megacardium
  • monocardium
  • pericardium
  • pericardium

The Heart Day is celebrated worldwide every year on

  • 28th March
  • 28th July
  • 28th August
  • 28th September

The blood groups of Rh-blood group systems includes

  • Rh-positive and Rh-negative
  • Rh-positive and Rh-negative
  • AB-positive and Rh-negative
  • Rh-positive and AB-negative

The transpiration in plants occurs through

  • cortex
  • phloem cells
  • stomata in leaves
  • xylem cells

The outer side of guard cells is

  • concave
  • convex
  • rough
  • none of above

The respiratory gases that are present in plasma are

  • helium and oxygen
  • nitrogen and oxygen
  • oxygen and carbon dioxide
  • hydrogen and oxygen

The process through which red blood cells are broken down in spleen and liver is called

  • xanthomatosis
  • microcytosis
  • macrocytosis
  • phagocytosis

The heart attack occurs when there is blood clotting in

  • renal arteries
  • mesenteric arteries
  • hepatic arteries
  • coronary arteries

In males, the number of red blood cells in one cubic millimeter of blood are

  • 5 to 5.5 million
  • 6 to 6.5 million
  • 1 to 2.5 million
  • 2 to 4 million

The blood cells that are present in human body in numerous number are

  • blue blood cells
  • red blood cells
  • deoxygenated cells
  • white blood cells

The myocardial infarction is also known as

  • diabetes
  • heart attack
  • cholesterol
  • hypertension

The smaller vessels in which arteries are divided after entering the body organs are called

  • cytokinesis
  • granum
  • centrioles
  • arterioles

After the contraction of right atrium, the deoxygenated blood passes it on to the

  • right ventricle
  • left ventricle
  • lower ventricle
  • upper ventricle

The walls of the heart are composed of

  • sphincter muscles
  • cardiac muscles
  • pelvic muscles
  • abdominal muscles

The number of chambers in heart are

  • two
  • four
  • five
  • three

The narrow layer of cells in form of thin walls is called

  • procycle
  • exodermis
  • endodermis
  • pericycle

The meaning of infarction is death of

  • aorta
  • artery
  • tissue
  • muscle

The pulmonary veins are veins from

  • lungs
  • ankles and knees
  • liver and kidneys
  • stomach and kidneys

The veins that comes from pancreas, spleen, stomach and intestine drains into

  • superior dorsal vein
  • inferior portal vein
  • hepatic portal vein
  • superior portal vein

The oxygenated blood is brought to left atrium from lungs through

  • pulmonary veins
  • pericardial veins
  • pericardium veins
  • semi lunar veins

During the day, the plants keep their

  • stomata opens
  • stomata closed
  • phloem blocked
  • xylem blocked

The components of blood circulatory system in humans includes

  • blood
  • blood vessels
  • heart
  • all of above

The pressure of blood is high in

  • arteries
  • veins
  • capillaries
  • nerves

The percentage of water in plasma is about

  • 80-82%
  • 90-92%
  • 50-52%
  • 60-62%
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